Some examples of the reflective property of equality are x = x, 20 = 20 and 1 = 1. In mathematics, the reflective property is one of the properties of equality that relates to real numbers. The reflective property simply means that a number will always be equal to itself.
There are more equality properties for real numbers, such as symmetric, transitive, addition, division, substitution and distributive properties. The transitive, reflective and symmetric properties give equivalence relations between real numbers. The other equality properties are useful for solving equations with real numbers. For example, the substitution property states that if a = b, then 'b' can be substituted for a in an expression. This is a useful property when solving a problem, such as if x = 3, then solve for x + 25 = ?. Through the substitution property, the answer is 28.